All cards messed up

I just bought a new computer with a CF card reader. When I insert the card it reads it, and if I use the "safely remove USB memory" feature, if I try another or the same card it does not see it until I restart. The store where I bought the computer said to just remove without the "safely remove button". That works but now it seems like all my cards are messed up. I have reformatted them all, and they just don't seem to do anything. Some will take a pic, then say there is nothing on the card either through the camera or the computer.

I have re-charged batteteis and formatted all cards to no avail.